Exchange 2010 Journaling - Journal DB Sizing

I am tasked to establish journaling on a small Exchange 2010 on prem environment.  I am running Exchange STD so I will be doing the entire DB.  I have one single DB that is 42GB.  I do not know the message volume for the 75 user mailboxes.
My intent is to create and re-point the journaling to a new Journal Mailbox based on Calendar year if possible.  Log file generation for the day is about 500MB if that helps with daily volume calculation.

Is there a Best Practice for sizing needs so I can create a new LUN for the Journaling DB?
winandtellAsked:
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cwstad2Commented:
Hi simply create a journaling mailbox, and you can if you like creat a journaling database. As im sure yoy know the journaling mailbox will keep all emails regardless of whether the emails are kept or deleted. I reset my journals quarterly to keep the size of the mailbox down and also provides a better time frame of recovery when searching for the mails. Is the server physical or virtual
Thomas GrassiSystems AdministratorCommented:
you know the database will continue to grow so best to have another drive for the new LUN and the mailbox for Journaling.

I also wrote a script to export the journaling inbox to a pst file

I run this weekly

You do not want your inbox to get too large.

The PST files are more manageable to open at a later time.

If you need help with a script let me know

HTH
winandtellAuthor Commented:
Hi Thomas,

Yes, it is a separate new LUN.  I would appreciate any scripting to automate exporting to a pst to allow for offloading and easier searches.
I also thought of creating new Journal Mailboxes periodically to segregate dates as well.

Regards
Thomas GrassiSystems AdministratorCommented:
Winandtell

the batch file that is in task manager is this

echo off
del c:\util\journal.txt
cd\util
C:\Windows\System32\WindowsPowerShell\v1.0\PowerShell.exe -PSConsoleFile "D:\Program Files\Microsoft\Exchange Server\V14\Bin\ExShell.psc1" -Command "./journal.ps1"
exit


The power shell script is here

$today = Get-Date -Format "MMddyyyy"
$Folder = "\\10.2.8.20\volume_1\email\journal\journal-$today"
[System.Reflection.Assembly]::LoadWithPartialName("System.Threading")
[System.Reflection.Assembly]::LoadWithPartialName("System.Globalization")
[System.Threading.Thread]::CurrentThread.CurrentCulture = [System.Globalization.CultureInfo]::CreateSpecificCulture("en-us")

add-pssnapin Microsoft.*

$start = (get-date).adddays(-7).toString('MM/dd/yyyy')
$end = (get-date).toString('MM/dd/yyyy')
$filter = "(Received -gt '"+$start+"') -and (Received -lt '"+$end+"')"

New-MailboxExportRequest –Mailbox journal -FilePath "$folder.pst" -ContentFilter "$filter" -confirm:$false -verbose -baditemlimit 15 >>c:\util\journal.txt


$timeout = new-timespan -Minutes 10
$ticker = [diagnostics.stopwatch]::StartNew()

while ($ticker.elapsed -lt $timeout) {    
    ##$Completed = Get-MailboxExportRequest -mailbox journal | Where {$_.Status -eq “Completed”} >>c:\util\journal.txt
       if (Get-MailboxExportRequest -mailbox journal | Where {$_.Status -eq “Completed”}) {       
              search-mailbox -identity journal -searchquery "Received:($start..$end)"  -deletecontent >>c:\util\journal.txt -force       
              return        
        }     
       start-sleep -seconds 60
 }
Get-MailboxExportRequest | Where {$_.Status -eq “Completed”} >>c:\util\journal.txt
Get-MailboxExportRequest | Where {$_.Status -eq “Completed”} | Remove-MailboxExportRequest -confirm:$false >>c:\util\journal.txt

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winandtellAuthor Commented:
Great details and extra kudos on the automation
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